All About Metal Fume Fever

a worker struggling with metal fume fever coughing

If you’re a welder, chances are you’ve heard about someone falling sick from the fumes. They might have dismissed it as a cold, but in reality, they may have experienced a bout of metal fume fever. It’s a common but underestimated health hazard for welders, metal workers, and even DIY enthusiasts who love working with metal. Let’s dive into what this condition is, why it’s a threat, and how to protect yourself.

What Metal Fume Fever Looks Like

Imagine working on a project, feeling fine, pushing through a long day. You’re welding with precision, breathing in the metal fumes, maybe not thinking much about it. The work wraps up, and you go home. Then, it hits out of nowhere—fever, chills, sweating through the night, and a painful, unrelenting cough.

Here’s how it typically unfolds:

  • Exposure: You’re exposed to fumes from metals like zinc, cadmium, or iron oxides while welding, especially if ventilation is poor.
  • Onset: It doesn’t take long. Within 4 to 12 hours, symptoms can hit.
  • Symptoms: The symptoms feel like a nasty flu. You may have a fever, chills, intense sweats, and muscle aches. A sudden cough might leave you feeling like you’re wheezing, and chest pain can make every breath uncomfortable. It’s no ordinary illness.

Inhaling metal fumes tricks the immune system, making it think it’s under attack. So, your body responds with fever and inflammation. But here’s the difference—it’s not caused by a virus. It’s your body reacting to toxic metals that it’s trying to expel.

For a professional welder, recognizing these symptoms as metal fume fever—not a common flu—is crucial. It’s an occupational hazard that’s preventable but only if you understand the risks and take steps to avoid exposure.

Will Metal Fume Fever Happen to Me?

If you’re thinking, “This is no big deal,” you’re not alone. Many welders assume it’s just part of the job and shrug it off. But here’s the reality: around 30% of middle-aged welders have experienced at least one episode of metal fume fever. It’s common enough to be a significant health hazard in the field.

But it doesn’t have to be a part of your story. Many welders go through their entire careers without experiencing it. What’s the difference?]

Those who stay safe are typically the ones who’ve invested in top-notch respiratory protection and understand the dangers of metal fumes.

Metal fume fever is more likely to occur in specific conditions:

  • Working with metals like zinc (often found in galvanized steel), cadmium, or aluminum.
  • Inadequate ventilation in the workspace.
  • Not wearing proper respiratory protection when welding.

 

You don’t have to accept metal fume fever as part of your job. By investing in the right equipment and learning how to recognize symptoms early, you can protect yourself from an uncomfortable—and avoidable—illness.

Who’s Most at Risk?

While professional welders are at the highest risk, metal fume fever doesn’t discriminate. Anyone working with heated metal fumes is susceptible:

  • Professional Welders: Working with a variety of metals in manufacturing, construction, and repair, welders are repeatedly exposed to metal fumes. Without consistent protection, their risk compounds over time.
  • Metal Fabricators: Fabricators, often working with large sheets of metal, may think the open environment keeps them safe. But without proper ventilation and personal protection, they are exposed to just as many fumes.
  • DIY Enthusiasts and Hobbyists: If you’re a part-time welder or metalworker, you might not be aware of the risks. Without professional training, many hobbyists work in poorly ventilated garages and neglect essential safety gear, believing short projects are safe.

 

If any of these apply to you or someone you know, think of it as a wake-up call. Metal fumes don’t care if you’re a seasoned pro or a weekend warrior—every exposure increases your risk of an episode.

welder inside a workshop surrounded by hazardous fume

Who Is Really to Blame?

When you’re looking for the culprit behind metal fume fever, point to the metals. Heating certain metals releases oxides into the air, which can be easily inhaled:

  • Zinc Oxide: Often found in galvanized steel, zinc is a top offender when it comes to metal fume fever. Just a small amount can trigger symptoms.
  • Cadmium Oxide: Used in certain coatings and alloys, cadmium is highly toxic and can even cause severe lung damage over time.
  • Iron Oxide: Commonly inhaled in welding, especially in confined spaces, iron oxide can contribute to respiratory irritation and increase your risk.
  • Aluminum Oxide: Often used in aerospace and automotive industries, aluminum fumes can create similar symptoms to metal fume fever.

 

When these metals are heated, they release a mix of fine particles and gasses that, when inhaled, go directly into your lungs. In high doses, they can cause immediate symptoms. Over time, chronic exposure to these fumes can even lead to long-term respiratory problems, including occupational asthma.

What to Do if You Suspect Metal Fume Fever

Fever kicks in, chills follow, and your chest feels tight. If you suspect metal fume fever, don’t wait for it to pass. Here’s your plan:

  1. Get Medical Help: Go to a doctor who understands occupational hazards. Describe your work and symptoms.
  2. Follow Their Recommendations: You may be advised to rest, stay hydrated, and use respiratory support if needed.
  3. Don’t Return to Work Immediately: Pushing through could aggravate your condition. Rest is crucial to prevent lingering respiratory issues.

 

If treated promptly, metal fume fever typically doesn’t lead to long-term effects. But repeated exposure without treatment can lead to more severe respiratory issues, like occupational asthma.

Prevention: How to Keep Metal Fume Fever at Bay

The best strategy against metal fume fever is to stop it before it happens. Here’s how to safeguard yourself from metal fumes:

1. Ventilation

Keep the air moving in your workspace. Use industrial fans, keep doors open, or work in well-ventilated areas to keep fumes from accumulating. If you’re in an enclosed area, this is especially critical.

a welder working in a ventilated workshop with industrial fans for the sake of safety

2. Fume Extractors

Keep the air moving in your workspace. Use industrial fans, keep doors open, or work in well-ventilated areas to keep fumes from accumulating. If you’re in an enclosed area, this is especially critical.

3. Welding Respirators

Respirators provide the most direct protection from metal fumes. Choose a respirator designed for welding, and make sure it fits snugly to prevent leaks. This extra layer could mean the difference between a safe workday and a bout of metal fume fever.

a welder wearing a mask within the minimal workshop setting, maintaining the safety

4. Welding Helmets

Your helmet is more than just face protection. An advanced welding helmet will guard you against harmful UV rays and reduce the risk of inhaling toxic particles. Helios comes with an auto-darkening feature, allowing you to keep your helmet on through different phases of the welding process. It also offers real-time inspection, so you don’t have to lift your helmet for inspections—keeping you safe from unexpected fume exposure​​​.

welder wearing a sleek, glowing black helmet in a stylish design, maintaining the safety manual style

For Business Owners: Protecting Your Employees

As a manager or business owner, ensuring your employees’ safety isn’t just a good practice—it’s a responsibility. Metal fume fever may resemble the flu, but don’t let your team shrug it off.

 

Here’s how to protect your workforce:

  • Run Regular Hazard Checks: Conduct frequent air quality checks and verify that workspaces meet safety standards.
  • Medical Monitoring: Offer routine health check-ups, especially for welders who are consistently exposed to fumes. Knowing their health baseline can help identify early signs of respiratory issues.
  • Allow Recovery: If a worker shows symptoms, grant them the time they need to rest and recover. Metal fume fever can sometimes progress to occupational asthma, which may even require oxygen therapy in severe cases. Early care can prevent these complications.

 

By providing the right support, you ensure a safer, healthier environment, and help prevent productivity loss from sick days.

Invest in The Right Tools

Whether you’re a welder or a project manager, investing in proper equipment is key to safety and productivity. The Helios Helmet, designed with real-time inspection and an auto-darkening feature, is built to prioritize both. With advanced filters and AI-enabled detection, Helios makes it easier to spot and address flaws on the spot, allowing welders to stay focused on safety and accuracy.

HELIOS SMART TECHNOLOGIES LTD.

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